Bull grew up in a housing complex in the New Mexican Shared Interest Zone, living with his father and Mexican mother, as well as many other family members. As a sixteen year old he went to Alamogordo and worked his two-year service stripping down ancient solar electricity stations to avoid going on basic, living in a dorm with ten other boys.
Despite being most qualified to lead the expedition to the Ring aboard Chief of Security due to the politics of him being from Earth and not from the Belt. Ashford was made captain instead. Michio Pa was made XO instead. Fred Johnson, despite respecting him and promoting Michio Pa, asked Bull to "make it work".
Once the Seung Un explodes and the apparent message from Jim Holden is broadcast, Bull is responsible for recommending to Ashford that the Behemoth summarily fire on the Rocinante as a statement that it denies and rejects any claim over the Ring in the name of the OPA as professed by the crew of Jim Holden's ship.
The Slow Zone Incident Edit
When the speed limit in the slow zone changed due to hostilities from Martians aboard Ring Station, Bull suffered a spinal fracture aboard the Behemoth, paralyzing him from the waist down. Sam gave him mechanical legs.